CVE-2026-91957

Low

Description

FreeRDP before 3.31.0 contains a use-after-free vulnerability in the smartcard RDPDR device handler when worker thread creation fails after device registration. Attackers can trigger thread creation failure during channel setup to cause device pointer deallocation while devman retains a reference, leading to crash or code execution.

SeverityLow

CVSS3.1

Exploit probability—

ProductFreerdp

PublishedSep 15, 2026

First seenSep 15, 2026

Weakness typeCWE-416Use after free

How to fix

Update

freerdp freerdp3.31.0 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-j5mq-3349-gwmm

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.31.0	3.31.0

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